Home / 9,513,123.90-13,128,044.40-5,162,099.55

Finding the Fourth Proportional to 9,513,123.90, 13,128,044.40 and 5,162,099.55

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Solution

The fourth proportional to 9,513,123.90, 13,128,044.40 and 5,162,099.55 is: 7,123,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,513,123.90 : 13,128,044.40 = 5,162,099.55 : x
  2. Step 2: Convert to fraction form
    9,513,123.90/13,128,044.40 = 5,162,099.55/x
  3. Step 3: Cross multiply
    9,513,123.90x = 13,128,044.40 × 5,162,099.55
  4. Step 4: Simplify right side
    9,513,123.90x = 67,768,272,089,620.02
  5. Step 5: Solve for x
    x = 67,768,272,089,620.02/9,513,123.90
  6. Step 6: Final answer
    x = 7,123,661.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.